Recording material

Abstract

Provided is a recording material which is improved in an adhesive property between a recording layer and a base material and is excellent in a printing aptitude in a heat transfer recording system or an ink jet recording system, a writing property and a stamp property and which can contribute to waste problems continuing to grow large and is excellent in a biodegradability. The above recording material has a recording layer formed by coating a coating solution containing a biodegradable resin comprising a non-crystalline polylactic acid resin and a filler on at least one face of a base material comprising a crystalline biodegradable polylactic acid resin, wherein a solvent used for the coating solution is a solvent having a solubility parameter of 7.5 to 12.5 (cal/cm 3 ) 1/2 , and a content of the above solvent in the coating solution is 40 to 90 mass %; and the above solvent contains 20 mass % or more of a solvent having a relative dielectric constant of 15 or more.

1 . A recording material having a recording layer formed by coating a coating solution containing a biodegradable resin comprising a non-crystalline polylactic acid resin and a filler on at least one face of a base material comprising a crystalline biodegradable polylactic acid resin, wherein a solvent used for the coating solution is a solvent having a solubility parameter of 7.5 to 12.5(cal/cm 3 ) 1/2 , and a content of the above solvent in the coating solution is 40 to 90 mass %; and the above solvent contains 20 mass % or more of a solvent having a relative dielectric constant of 15 or more.  
     
     
         2 . The recording material as described in  claim 1 , wherein the filler is a natural inorganic and/or organic filler.  
     
     
         3 . The recording material as described in  claim 1 , wherein a mixing ratio of the filler to the biodegradable resin in the coating solution falls in a range of filler/biodegradable resin=0.1 to 5.0 in terms of a mass ratio.  
     
     
         4 . The recording material as described in  claim 2 , wherein a mixing ratio of the filler to the biodegradable resin in the coating solution falls in a range of filler/biodegradable resin=0.1 to 5.0 in terms of a mass ratio.